DE2003848A1 - Heating device for railway switches - Google Patents

Description

The invention relates generally to railroad switch heating devices for supplying heat to a Switch for the purpose of melting ice and snow and keeping the switch free of ice and snow so that it is operational remains, and it relates in particular to a point heating device that allows heat to be applied directly to the switch blades, the associated rails, the switch operating rods and all other moving parts of a switch.

The need to stop trains because a switch is frozen or clogged with ice and / or snow is, leads to very high costs and serious "operational disruptions." The railway companies already use numerous devices and machines to set the points to get rid of ice and snow and so the difficulties mentioned To Avoid · Most of the heating devices known to date apply heat directly to the outside of each rail in the area of a switch and over the entire length of the switch to the temperature of the rails and their assigned Raising steel components and thus melting the ice and snow. Since the rails here often

009832/1369

ORIGINAL INSPECTED

■■■■■ j

large amounts of heat are supplied directly, occur frequently Deformations of components of the switch, and such deformations can ultimately lead to malfunction of the Soft lead. In addition, if the heat is only supplied to the outer surfaces of the rails, it is not possible that Ice and snow on the components arranged between the rails, e.g. the switch blades and the switch operating rods, to remove. It has also been used in point heating devices up to now It is necessary to provide ignition devices on both sides of each switch. Eventually the up now known point heating devices in most cases placed near the rails on the ground, and therefore they can become clogged with dirt and snow, so that they are not working properly.

According to the invention, the difficulties described above are now to be avoided, and there is a novel and improved point heating device are created, which makes it possible to fully utilize the generated heat and to be fed in an economical manner to a switch to melt ice and / or snow without any Damage to the switch construction and / or impairment of proper functioning is to be expected is.

The switch heating device according to the invention comprises a housing which extends along one side of a switch near a rail, is arranged at an elevated level with respect to the floor and carries one or more burners. Each burner is aligned with a tree between adjacent sleepers and is provided with a heat distribution pipe which extends down below the rail and then inwards in the tree between adjacent sleepers. The distribution pipe is enclosed by a conduit pipe , since it extends over a further distance between the sleepers, so that the Meissen gases and / or radiant heat on all components of the switch including the switch blades and the

009832/1369

20038A8

Switch operating rods can be distributed. The flames of the burners extend downwards so that all critical components can be arranged above the thresholds and that their proper operation is less endangered by dirt and / or snow. so that these critical zones are kept free of ice and snow and perfect operation of the switch is guaranteed. Because of the V _erwe invention the mentioned Bateile for distributing the heat that is required in the inventive Weichenheizvorriohtung, the critical components, ie, the ignition devices of the heater to be arranged along one side of the switch; this reduces the total costs of the heating device as well as the total operating costs -

Furthermore, the invention makes it possible to supply heat to areas that are difficult to heat, as is the case with double or crossing switches vo are bound. Since most of the movement of the rails in turnouts takes place at the turnout tongues and in whose proximity takes place while there is very little movement at the rear end, it is only an invention of 4 required to provide a heater aie over about 50% to 60% of the length of the turnout and along that Partly extends where the movable components are arranged. Heat becomes hotter in shape with the help of the cables mentioned Gases not only supplied to the 'critical zones, but also in the vicinity of the burner. Radiant heat given off, j

which is fed directly to the adjacent rail.

The invention also provides a point heating device see below, "Freeing the points of ice and / or tendons", for the Heat can also be supplied to parts of a switch that are difficult to heat, so that it is not necessary for the relevant parts Remove ice and / or snow from parts by hand.

The invention and advantageous details of the invention are explained in more detail below on the basis of exemplary embodiments using schematic drawings.

009832/1369

BATH ORIGINAL

> f ι (: ■■ ί

Fifr. 1 is a somewhat simpler neater <jucr ;;. Cnnitt one Soft, üie with a switch heating device according to the invention is equipped

Fig. 2 shows in a shortened plan a burner and line assembly of a point heating device according to the invention.

Fig. 3 is a section through the burner and conduit assembly of Fig. 2 taken along line 3-3 in Fig. 2 and shows also with dashed lines the rails and switch blades of a switch.

Fig. 4 is a section on line 4-4 in Fig. 3.

Fig. 5 shows a cross-sectional heating device according to the invention in plan in their relation to a rail arranged on sleepers, with certain parts of the clarity half we; broken are drawn, and with the switch blades are omitted for the same reason.

The point heating device according to the invention can be used equally well with simple as well as complicated ones Use switch constructions to add heat to the parts in question and the moving parts of a switch to be kept freely movable and operable when the operability is normally endangered by snow and ice could. One equipped with a heating device according to the invention Soft could of course be fully thawed after freezing if the heater was in operation is set. With the switch arrangement, the heat is transferred directly to the switch tongues and the operating rods as well as the Rails fed.

The Vveichenheizvorrichtung invention can with the most diverse switch constructions can be used. It is particularly useful for those that are difficult to heat Suitable for turnouts, e.g. for double or crossover points that

009832/1369

BATH ORIGINAL

2ÜÜ384B - 5 -

because of the large number and the special arrangement of the It is difficult to heat the moving tongues. Furthermore, a heating device according to the invention can be used in addition to heating devices known type as well as in shunting systems, in which numerous short points have to be kept operational in order to organize freight and passenger cars to enable. Finally, it should be noted that the cost of the heating device according to the invention is so low that it are not to be regarded as investment costs, the expenditure of which would require special approval.

In Fig. 1 you can see two parallel rails 10 and a switch construction, to which two switch tongues 12 and 12 are assigned, which can be moved at the same time on the rails 10 and 11 m to or away from them _o It should be noted that one switch operating rods in each can provide the desired number. Without effecting a fundamental change in the embodiment according to FIG. 1, an actuating rod extension 14a can be provided which is connected to the switch tongues of an adjacent pair of rails so that all tongues can be operated together To keep ice and snow, the switch tongues and the operating rods must be kept in a state in which they can be moved towards and away from the rails 10 and 11. Any accumulation of ice and / or snow between a switch tongue and the adjacent rail or between an actuating I

rod and the sleepers or the floor would become an obstruction the movement of the switch blades and a faulty one Perform work of the switch. The heating device according to the invention keeps the moving parts of a switch free of ice and / or snow so that they can be operated at any time can.

Referring to Fig. 5, a typical heater for a switch comprise several burner assemblies 15, which are close the outside of one of the rails of the switch are arranged.

009832/1369

A distribution pipe 16 is assigned to each burner, and an elongated line 17 is assigned to each distribution pipe, which is provided between adjacent sleepers 18 and attached thereto. Every two neighboring thresholds limit one Space 19, from each of which one of the lines 17 was added will. A main fuel supply line 20 having a Inlet 21 carries fuel to all of the burner assemblies 15 to. Any type of fuel could be used, but it should be noted that the use of gaseous Fuel is particularly useful

An ignition device 22 is used to ignite all of the burners of the heating device. It should be noted that the burner can be ignited by hand or by means of a constantly burning pilot flame or with the help of spark plugs, so ate remote control is possible if necessary. Furthermore, one can provide devices that an automatic ignition of the Enable burner. It is obvious that a heating device according to the invention can be selected from any number can be composed of burners, the number of burners depending on the desired output of the heating device and aligns with the dimensions of the switch construction.

1 to 4, the burner assembly 15 is close to one of the switch rails on the outside and inclined so that they are down and then below the rail extends inward. Furthermore, each burner assembly is coaxial with one of two adjacent sleepers 16 delimited tree 19 arranged. Sas exhaust manifold 16 forms an extension of the burner assembly and serves to direct the combustion gases down and in to the conduit 17 to direct. For this purpose, the manifold 16 is in the form of an elbow with an inlet section 16a and an outlet portion 16b. Several openings 23 are distributed along the outlet section 16b of the distributor pipe, so that combustion air can enter and the combustion gases can escape. According to Figs. 1 and 3, the outlet «·

009832/1369

ΐ ■ ι · <

section IGb In die se ^ tuur; 1 ^r -

According to Fig. '+ Bet. crr.e I * rir.a.ü £ "'" ■■ "μ in ex, .I: ./: -;, ir rectangular cross-section, it is at its ends 2 ^ υΐ-.l 25 banks) And these ends are arranged at a distance below the switch tongues 12 and 13 on both sides of the switch. Thus, the combustion gases pass into the line 17, they flow in both directions through the line, and they escape via the openings 24 and 25 at the ends so that the hot combustion gases are released in the area of the switch tongues. This keeps the tongues and the neighboring rails free of ice and / or snow so that the switch can be operated at any time without hindrance 26 is used, the LEI M obligations 17 which are disposed in the interstices 19 of the thresholds to the adjacent sleepers to connect * However, it could provide for other devices, in order to keep the wires 17 in their position.

The switch actuating rods 14 are kept free of ice and snow by the heat convection trömunge η emanating from the lines 17 and the radiant heat emitted by the lines. It makes no difference whether the actuating rods lie directly over the pipes or over an adjacent threshold, because the heat given off keeps the neighboring thresholds free of ice and snow. It should be noted, however, that the operating rods usually over i

the open gaps between adjacent sleepers and therefore aligned with the lines 17 of the heater are. Radiant heat is also generated from the burner assemblies and manifolds below and around the Rail 11 released, and this heat helps to keep the rail free of ice and / or snow.

On the outside of the rails 10 and 11 covers 27 are arranged to protect part of the combustion gases and to retain the radiant heat so that the rails are heated

009832/1369

BAD OR (GiNAL

2 O U 3 8 Λ

and also to protect the burner assemblies. According to FIGS. 1 and 3, the covers 27 extend outwards from the rail heads and then over downwards the burner assemblies away. The covers increase the heating effect of the combustion gases and radiant heat, as they prevent the heat on the outside of the rails from escaping directly upwards. Usually stretch The covers only cover 50% to 60% of the length of a Switch, since only this part needs to be kept free, and since the rails at the other end of the switch are only slightly or not move at all. The fact that the burners work with the flames pointing downwards serves to reduce the To keep parts of the burners and their openings free of dirt and snow, which reduces maintenance costs » In addition, this arrangement enables the heater to operate when the enclosure is covered with ice as each Burner tube is provided with an additional opening. Finally, it should be noted that the heating device is designed in this way is that it is adjusted and out of contact to compensate for different rail heights and threshold distances can be arranged with the switch operating rods.

Potency claims;

009832/1369

BADQBIQiNAL, ^

Claims (4)

2 C 0 3 8 Ι -! ■ · ir MC.VOnE B AT i Li Ί ' AN b PH Ij GHE i, 1. / He ir. device for -, isenbahnweieh ^ n, characterized by a near the outside of an egg. dike associated rail '11) ' arranged burner (15). a combustion gas vertoiloxrolir (16), uu £> slcL from dom Brenner at.ε under the rail ..-, away after and in a liauid '19,. ■ e., delimited by benacabarte thresholds x'i &), - stretches, i: clike a zwisuhex. u.en öcnwoijc *. un ^ eur-änce, s * · i. parallel to it extending -L> ri.L "L.ii ^ (1?) j ^ lt ϊ, 'Λ ^ γ den ^ θιοιχΟλ tongues ^! '12, 13) lying open ends (? 4-> 25)» where there : Distribution pipe protrudes into the line in order to distribute the combustion gases in it, so that they flow along the length of the line and also facing away from each other. Luxid ^ a untweijhe.i. 2. heating device; according to claim 1, characterized by one arranged above the burner (15): Cover (27) which extends to the rail (11) and serves to remove the rail's heat generated by the burner to feed ο 3. Heating device according to claim 1, characterized draws that along the switch several burners (15) and lines (17) comprehensive assemblies distributed at intervals are" 4. Heating device according to claim 1, characterized shows that the cross section of the line (17) is considerably larger than the cross section of the distributor pipe (16). 009832/1369 BATH ORIGINAL L 'L ν> ϋ S. ..-- .: «τ. = ..- '■ ·; · .. ■ - e'.rjei.'ΐ-e;seT.cai'uVJe j ch ί: with oeweg lieho :. _νχ:. "Iie: .. ^^ ·. ·,,. · · -AcU We", ehe «?! · -T.ä.ti.gu: Qgsstangen ειΐηι LivfiCi ·: the pa: c; .z £ U :; ,, ai. actuation iciteinaiider connected and ^ v, '. thresholds angeor-due ^ ea are assigned to stationary rails', oestinunte heating device for supplying heat to the switch tongues, the Weicüeiibataktivstangen and the stationary rails, characterized by a near the outside of a stationary Rail (11) and coaxially with an aurch. Neighboring sleepers (18) delimited space (19) south in the cows of the white tongues (12, 13) arranged burner '[Λ?) , A heat distribution pipe (16), which extends from the burner from inwards and downwards under the adjacent fixed rail into a barely hiaein extending _Uj delimited by neighboring sleepers and a conduit (1?) extending through this space with open ends (24, 25) below the heating tongues, whereby, the heat distribution pipe protrudes into one of the open linden trees (25) of the line. 009832/13 69 ⁴ ORIGINAL BATHROOM / I / t Blank page